/Engine/Source/Runtime/Engine/Classes/Particles/ParticleSystemComponent.h
Creates a Dynamic Material Instance for the specified named material override, optionally from the supplied material.
virtual [UMaterialInstanceDynamic](API\Runtime\Engine\Materials\UMaterialInstanceDynamic) * CreateNamedDynamicMaterialInstance ( [FName](API\Runtime\Core\UObject\FName) InName, class [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * SourceMaterial )